fix: prioritize vue installed in user project root

src/node/alias.ts

@@ -14,13 +14,24 @@ export const DEFAULT_THEME_PATH = path.join(DIST_CLIENT_PATH, 'theme-default')
 export const SITE_DATA_ID = '@siteData'
 export const SITE_DATA_REQUEST_PATH = '/' + SITE_DATA_ID
 
-export function resolveAliases(themeDir: string): AliasOptions {
+const vueRuntimePath = 'vue/dist/vue.runtime.esm-bundler.js'
+
+export function resolveAliases(root: string, themeDir: string): AliasOptions {
   const paths: Record<string, string> = {
     '/@theme': themeDir,
     '/@shared': SHARED_PATH,
     [SITE_DATA_ID]: SITE_DATA_REQUEST_PATH
   }
 
+  // prioritize vue installed in project root and fallback to
+  // vue that comes with vitepress itself.
+  let vuePath
+  try {
+    vuePath = require.resolve(vueRuntimePath, { paths: [root] })
+  } catch (e) {
+    vuePath = require.resolve(vueRuntimePath)
+  }
+
   const aliases: Alias[] = [
     ...Object.keys(paths).map((p) => ({
       find: p,
@@ -40,7 +51,7 @@ export function resolveAliases(themeDir: string): AliasOptions {
     // vitepress itself
     {
       find: /^vue$/,
-      replacement: require.resolve('vue/dist/vue.runtime.esm-bundler.js')
+      replacement: vuePath
     }
   ]
 

src/node/build/render.ts

@@ -21,8 +21,20 @@ export async function renderPage(
   const routePath = `/${page.replace(/\.md$/, '')}`
   const siteData = resolveSiteDataByRoute(config.site, routePath)
   router.go(routePath)
+
   // lazy require server-renderer for production build
-  const content = await require('vue/server-renderer').renderToString(app)
+  // prioritize project root over vitepress' own dep
+  let rendererPath
+  try {
+    rendererPath = require.resolve('vue/server-renderer', {
+      paths: [config.root]
+    })
+  } catch (e) {
+    rendererPath = require.resolve('vue/server-renderer')
+  }
+
+  // render page
+  const content = await require(rendererPath).renderToString(app)
 
   const pageName = page.replace(/\//g, '_')
   // server build doesn't need hash

src/node/config.ts

@@ -139,7 +139,7 @@ export async function resolveConfig(
     outDir,
     tempDir: resolve(root, '.temp'),
     markdown: userConfig.markdown,
-    alias: resolveAliases(themeDir),
+    alias: resolveAliases(root, themeDir),
     vue: userConfig.vue,
     vite: userConfig.vite,
     shouldPreload: userConfig.shouldPreload,